to monitor them continuously to keep your Microsoft 365 setup secure.

If you face issue with MFA enabled account, then you can generate app password and then use an app password for that account, instead of the regular user password. You can still send an email on shared mailbox using your primary account because. Send-MailMessage -To -from -Subject 'Test message' -Body $body -BodyAsHtml -smtpserver -usessl -Credential $cred -Port 587 $cred = New-Object -argumentlist $username, $sstr When you set up the standalone EAS proxy in PowerShell mode, it connects to your Exchange mail server through PowerShell and sets email access based on the. $sstr = ConvertTo-SecureString -string $password -AsPlainText -Force The below command works fine for me even with MFA enabled account.

Cmdlet is not related with Exchange Online Powershell or EXOPSSession (MFA), this is normal Powershell utility command, so you have to individually pass required parameters (ex: username and password) to this cmdlet. If the issue persists, please check if you can send email to the security group by outlook and provide the whole script to us if you haven’t post here for more investigation.

Microsoft secure email power shell